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Hi guys,
I´am building a small studio and now I´m in the stage when isolation is OK but acoustic in the room is not.
Dimensions: 12*12*7.5 feet (3,7*3,7*2,3m)

In this moment there is a carpet on the floor, and soft foam combined with paper egg trays which covers like 70% of walls and 60% of ceiling (only paper egg trays there).
There is just soft foam in the corners.

- I know I can´t expect profi acoustic but maybe I could cure some problems.

- I will mainly record acoustic drums, guitars and vocals.

I found that close to ceiling all the high frequencies disappears. That would be the first problem I dont´t know how to solve. It makes a big problem when I place OH´s - i like to put them high above the kit but than they lack HF.
Is there any way to treat this?
To much stuff on the walls?
Or are paper egg trays that bad?

You should probably try to find some fiberglass or at the very least acoustic foam to place over the kit. This will help reduce the comb-filtering in the overhead mics.

You're gonna need some serious trapping in the form of deep corner traps to help reduce the coincident waves. This is due to the same dimensions in length and width. - It's very easy to cut the highs in a room, but LF trapping will be what you need and small drum rooms usually end up best 'dead' sounding. You can always add some ambiance in the mix.

The egg trays can have a huge benefit in a room (if you happen to have a whole bunch of eggs lying around loose on the floor - which could get real messy) - but an improvement in your room's acoustics would not be one of those benefits.....

- I know I can´t expect profi acoustic but maybe I could cure some problems.

Actually, if u do some basic research and have a modest budget, u can get quite satisfactory results, it seems.

Quote:

Originally Posted by Johnnnnnnnnnny

I found that close to ceiling all the high frequencies disappears.

Maybe its your egg cartons...
i would actually take em all off and if its still not to ur liking, possibly place some reflective materials on the ceiling.. especially if u have a set spot where u always place the drums, then maybe just a panel where the ovh's and the mics would go rather than all over the ceiling... something maybe like plywood panels or something similar that would absorb the low mids and not so much the highs... or something like that...
im just a noob with this still, and can only give ideas from what i have read over actual practical experience, which i hope to get soon..

The egg trays can have a huge benefit in a room (if you happen to have a whole bunch of eggs lying around loose on the floor - which could get real messy) - but an improvement in your room's acoustics would not be one of those benefits.....

Rod

If you glue them in opposing patterns around the door they ward off vampires

My old man did that exact thing as you in a similar room..the room was a muddy blurring mess... I'm no guru.. But if I were u I would get some DIY bass traps and do every corner in the room, maybe lose the carpet.. and get the ceiling sorted as the guys above have mentioned..

My drums are at a corner and walls and ceiling are made of drywall.
So I will try your recommendations - make bass traps from fiberglass in the corners - that is consensus.
- Than take of the egg trays
And what should I put there instead?
Should I leave ceiling above the drums clear - just drywall?

About the egg trays - It´s not true that they do nothing - when I build the room I clapped during the process and when 50% was covered I could still hear some ugly echo in the room. But when I added more trays it stopped. So it definitely does something but it rather takes out high mids and highs than anything else.

About the egg trays - It´s not true that they do nothing - when I build the room I clapped during the process and when 50% was covered I could still hear some ugly echo in the room. But when I added more trays it stopped. So it definitely does something but it rather takes out high mids and highs than anything else.

Takes out highs and reverb so you left with a boom box.

You should try keep the floor wood and the roof absorbtion, the human ear is used to floor reflections apparently its more normal, the guys earlier mentioned remedies for the roof I think.

Johnny, most if not all of the advice above was given assuming you were talking about a Control or Listening room. Recording rooms are very different, and egg boxes do control flutter echo as you have found. Try your overheads taped flat to the wall behind the drums pointing down. This will create downward cardioid PZM's. PZM's do not suffer any destructive reflections.

Typical 'Pen' microphones can be used on stands as normal. Just position them almost touching the wall, maybe with a piece of foam between.
With even large mics I reckon it is usually possible to get the capsule close to the wall.
DD

Typical 'Pen' microphones can be used on stands as normal. Just position them almost touching the wall, maybe with a piece of foam between.
With even large mics I reckon it is usually possible to get the capsule close to the wall.
DD

OK
I will definitely try this position in next recording.
Should they aim to the ground parallel with the wall? That sounds a little bit strange if they do not aim to the drums

PZM microphones do not receive destructive reflections because they are on the boundary. So for the sake of the Overheads there is absolutely no need to treat the wall they are on. You may treat it for other reasons, e.g. flutter echo, but that will make no difference to the PZM' s. They are as blind to the treatment as they are to reflections.

Now I have moved all the gear out of the room and painted the walls.
My next problem is the floor. So far I had a carpet all over the room but now I can´t decide what is the best solution for acoustic in this room.

Options
1) flagging
2) carpet
3) floating floor

Wooden floor is unfortunately out of my budget.
I have read that carpet is not good for the acoustic so now i think the floating floor is the way to go.

Do you LIKE the tile?? If you like how the tile looks and feels, it will not adversely affect the acoustics. Tile will have a slightly better high frequency reflection compared to wood or laminate on tile or cement.

It's really 'pick ur poison'.. any / all of that should work fine.
BUT, if you LIKE your current floor, don't change it. - You know, "If it's not Baroque, Don't fix it!"

Do you LIKE the tile?? If you like how the tile looks and feels, it will not adversely affect the acoustics. Tile will have a slightly better high frequency reflection compared to wood or laminate on tile or cement.

It's really 'pick ur poison'.. any / all of that should work fine.
BUT, if you LIKE your current floor, don't change it. - You know, "If it's not Baroque, Don't fix it!"

Cheers,
John

I had a carpet there till now when i painted the walls. I think i like the tile better than the carpet before but it looks terrible because it is very old

I have done and have bought some acoustic stuff and made the floor.
Going to make some bass traps soon. The room is much more live than before but it is too much now.
I don´t want the room to be completely dead.